The percentage of first admissions for psychosis terminating in chronic (ie, three-year-continuous) hospitalization was determined in a 5- to 15-year follow-up of first admissions from Boston for 1953 to 1963. The rate of chronic hospitalization for patients aged 15 to 19 at first admission is over 20%, which is twice the average rate for patients aged 20 to 39 at first admission. About 90% start the "chronic" admission within five years after first admission, but over 70% are discharged at least once after the first admission. The findings underline the need for developmentally relevant treatment and rehabilitation programs prior to community-based care.
Kris A, Schiff L, McLaughlin R. Susceptibility to Chronic Hospitalization Relative to Age at First Admission. Arch Gen Psychiatry. 1971;24(4):346-352. doi:10.1001/archpsyc.1971.01750100056008